On the Subject of the Smokey CM

A machine that knows no bounds when it comes to ciphers.

Create a key using the keyword on screen 1 and the Boolean Expression on screen A. Split the key into 2 equal halves and place the 2nd half underneath the 1st half. This will be referred to as the Smokey Key.

For each letter of the encrypted word, do the following:

  • Find the Nth letter of the encrypted word in the Smokey Key.
  • The letter directly above/below it becomes your Nth decrypted letter.
  • Swap the 2 letters in the key.
  • Shift the row with the Nth encrypted letter until the letter is in the left most column.
  • Shift the row with the Nth decrypted letter until the letter is in the right most column.

Example

Encrypted Word: AXSN

SAUCERBDFGHIJ
KLMNOPQTVWXYZ

A → L

UCERBDFGHIJSL
AMNOPQTVWXYZK

X → I

XJSLUCERBDFGH
YZKAMNOPQTVWI

S → K

LUCERBDFGHXJK
SAMNOPQTVWIYZ

N → E